Lock and fuel saver for explosion engines



Nov. 18, 1924. y 1,516,282

M. FISHER LOCK AND FUEL SAVER FOR EXPLOSION ENGINES Filed May 16, 1922 g4 Ma@ 75.5%65 2/ w m atten @w11 Patented Nov. 18,

UNITED sTATEs u'osn FISHER, or rLAIN, NEW nnxrco.

Loox um rum. sam ron nxrrosronnncmns.

' Application ill'ed lay 18, 1922. Serial No. 561,385.V

To all rwhom t may cmwcm:

c Be it known that'Mosn FISHER, a citizen of the United Statesof America, residing at Plain, in the county of Quay and State of Q New Mexico, has invented new and useful Improvements in Locksv and Fuel Saversfor Explosion Engines, of which the )following is a specification.y

The object of the invention is to provide l a simple and ecient means for attachment to .an explosion engine of the gasoline or similar type such as are used in connection with automobiles and similar motor-driven vehicles as a means of economizing inthe use of fuel by providing an ine sup- A ply of air to the mixture as the speed of the engine increases and in that connection to provide a construction `of' gas savingv device which will serve as a lock -to prevent the start-ing of the engine when it has been parked, and has a means of dis nsing with the im lement or other mechanical forms of car loc ing devices applied to the -wheels or other elements of the vehicle; and with these 25 objects in View the invention consists in a construction and combination of arts of which a preferred embodiment is s own in the accompanying drawings, wherein Fivure "1 is a side view of a -device emv bodying the invention applied in the opera- -tive position to the intake manifold of an internal combustion engine.

Figure 2 is a longitudinal sectional viewof the same with the parts intheir normal or operative positions.v

Figures 3 and 4 are detail sectional views of the members of the device separated as when the car is locked '11st operation.

The apparatus em iesv essentially two `complemental telescoping members l() and 11' of tubular constructionv of which `the former constitutes a supplementalair'inlet adapted to be arra :in communication with the intake mani old 12 of a gasoline or 4.5 other explosion e ine and the. latter con stitutes a key mem r detachable from the air inlet member and bein of such ydimensions as readily to be carried in the pocket of the car driver or operator. Forconvenience of attachment -the air inlet member is exteriorly threaded at one end as shown at E 13 for engagement with a suitable opening which may be formed in the intake manifol a fixed collar 13 carried exteiorly by the memberioeing adapted to be brought into contact with the wall of the manifold to insure a gas tight connection. The inner end or head 14 of the supply member is perforated as indicated at 15 to rovide for a free passage of air from t e interior thereof` lnto the intake maifold.

Carried by the head 14 of the stational or air supply member and. extending axially therethrough and beyond the outer end thereof is a pin 16 whlch mav have a slightly reduced outer extremity 17 as illustrated,

and mounted in said member in surrounding relation -with the pin is a follower rin 18 carried by an expansion spri 19 whic is infer and t e head 14 and is attached to both so as to support the follower in a ioating relased between the ring o )the follower` tion within the air supply member withont,

h owever, obstructing the therethrough, and to this en the follower ring is made of a larger diameter than the pin 16, or said follower is rovided with perforations 20, or both, as i lus- (passage of air trated in the drawing. Vhen the key member` of the device is removed the follower is supplorted for free reciprocatory movement in t e'inlet member subject to the yielding llcstraint aifordedby the supporting spring The key member which is also of tubular formas above noted is provided at its outer end with an air inlet port 21 forming a seat for a tapered valve 22 yieldingly held in seated position by a spring 23 which bears .at its' inner end against a collar 24 threaded in the inner end of the member 11 and also of larger diameter than the pin 16 over which the inner end of the spring 23 passes as vindicated in Figure 2 when the members of the device are engaged. In the wall of the stationary 0r inlet .member 10 at its outer end are formed bayonet slots 25.for engagement by lateral -studs 26 pro'ecting from the inner end of 'the key mem r, so that in positioning the latter with relation to the former it is only the opening inA necessary .to register the same` and then i' force vthe key member into the stationary member with the studs 26 in alignment wit the slots 25, to thereby repress the follower 18 until a turning movement of the key member will enga e said studs with the Oiset portions of tie bayonet slots. vThese engagement by reason of vibration of the devlce may be eliminated.

Thus the key member may beattached vand detached by a simple turning or rotary.

movement through a ortion of a revolution and a longitudina movement sufficient to properly seat the inner end of the key member in the stationar member or unseat the same as indicate the 'insertion of the keymembers serving to re ress the f'ollower ring 18 from the position which it normally occupies when the. key member is displaced. s Y

The function of the follower ring and the pin 16 is to interfere with the introduction into the end of the stationary or air inlet member of the device of any plug or stopper which will serve to close the same an thereby revent the free influx of air which when t e key member isunseated is sufficient to break any suction which may be incident to the movement of the en ine pistons and thereby prevent the yintro uction of fuel from the carburetter or other source of supply to the engine and consequently prevent the starting of the engine. The projection of the pin terminally beyond the outerend of the inlet member and the floating support of the follower serve jointly to interfere with the aangement of any temporar ,or im rovis ug means which wdruld desti'oy the gfiicieglnbljir of the locking device, and asa further precau- AAeo tion, to prevent the arrangement of any cap or like device .exteriorly upon the outer or inlet end of the ystationary member,

knobs or projections 27 are located at in'- jtervals thereon.

' When 'the key member is seated in the .stationary or air inlet member and located 1n place as above described the introduction of air therethrough is regulated by the valve 22 which is held seated in resistance to the suction in the intakey manifold so that the supply of fuel to the cylinders ma j be permltted in the ordinary way and un ernormal conditions. Obviously when 'the speed of the engine exceeds a predetermined rate which ma be determined by the adjustment of the co lar 24 with relation to the key memberin which it isthreaded to vary t e tension Aof the spring 23 and hence the resistance of the valve to unseating posltion, the said valve will permit of the entrance of an amount of air suiicient to modify the richness' of the mixture incident to the functioning of the normal means of n ply of fuel andv air to the" intake manii ""fTlius While the device with its partsa'ssembled will permit of normal o ration of "an engine of the type indica with the` modification that a supplemental supply .of air is afforded under certain conditions to economize in the use of the fuel and derive the maximum benefit from the re uired expenditureA thereof,` the removal o the key member from the stationary member of the device will permit of an influx of air which is suflicientto break any suction which may Y be produced in thel intake manifold by the `operation of thepistons and"thereby prevent the induction of fuel to form an explosame by reason of the means provided fory preventing the plugging or stopping of the inlet end ofthe stationary member of the device. A v

Moreover this locking means is adapted to meet those municipal provisions which require that while a vehicle of the vmotordriven type may be locked, the -means of' locking must not be such as to prevent the movement of the car to permit lof its displacement to avoid obstruction in the event of fire or in the carrying' outof other police regulations. With the device described the car is free to be moved upon the release of the ordinary brake mechanism but the start ing of the engine is prevented by reason of the fact that the suction necessary. for the induction of an operative mixture is precluded by an excessive supply of air to the intake manifold.

Having,described theinvention, what is I lwith an axial pin for obstructing the introductionof a substitute pluggin means.

2. A motor car locking device avmg cmplarsnental stationary and removable memof which the former is adapted for attachment to the intake manifold of the vehicle engine to permit of.v an admission of airjsuiiicient to sup ly the -suction to the cylinder pistons, an the other constitutes a means of controlling the inux of air through the first-named member, the said members being of telescoping construction and the first-named member being'l rovided en axial pin'for obstructing t e intro- I duction of a substitute pluggin means, said vplemental stationary and removable members of which the former is ada ted for attachment to the intake manifol of the vehicle engine to permit of an admission of air sufficient to supply the suction to the cylinder pistons, and the other constitutes a means of controlling the influx of air through the first-named member, said firstnamed member being provided with an interior perforated spring supported floating follower.

5. A motor car locking device having complemental stationary and removable members of which the former is adapted for attachment to the intake manifold of the vehicle engine to permit of an admission of air suiicient to supply the suction to the cylinder pistons, and the other constitutes a means `of controlling the influx of air lthrough the first-named member, said first-named member being provided with an axial pin and an annular yieldingly supported floating follower.

6. A motor car locking device having complemental stationary and removable members'of which the former is adapted for attachment to the intake manifold of the vehicle engine to permit of an admission of air sufficient to supply the suction vto the cylinder pistons, and the other' constitutes a means of controlling the 'influx `of air through the first-named member, the firstnamed member being provided with an axial pin and an annular yieldin ly su ported follower ring and the secon -names member having a valve controlled air inlet port,

a valve seating spring, and tensioning means for the sprmg.

7. A motor car locking device having complemental stationary and removable members of which the former is adapted for attachment to the intake manifold of the vehif cle engine to permit of an admission of air sufficient to supply the suction to the cylinder pistons, and the other constitutes a means of controlling the iniux of air `through the first-named member, the'firstsufiicient to supply the suction to the cylin-l der piston, and the other constitutes a means for controlling the influx of the air through the first-named members, said members being provided with interlocking means and the first-named member having exteriorly andinteriorly obstructing means to prevent its being closed by a plug or cap when the second-named member is detached.

9. A motor car locking device having complemental stationary and removable members of which the former is adapted for attachment to the intake manifold of the ve-l hicle engine to permit of an admiion of air sucient to supply the suction to the cylinder piston, and the other constitutes a means for controlling the influx of the air through -the rst-named members, said members being provided with interlocking means and the first-named member being provided on its periphery with spaced projections located at intervals thereon to preclude air-ti ht connection of a cap when `the secon named member is detached.

In testimony whereof nature. l

MCSE FISHER.

.he aixes hisv sigr 

